CSC Hemodynamic Monitoring & Assessment 3

Question 1

The thermodilution method of measuring cardiac output involves injecting cold saline into which port of the pulmonary artery catheter?

Accepted Answer

Proximal (RA) port

Answer

Distal (PA) port

Answer

Balloon inflation port

Answer

Thermistor port

Question 2

Which hemodynamic parameter primarily reflects left ventricular preload?

Accepted Answer

Pulmonary capillary wedge pressure (PCWP)

Answer

Central venous pressure (CVP)

Answer

Systemic vascular resistance (SVR)

Answer

Pulse pressure variation (PPV)

Question 3

Pulse pressure variation (PPV) >13% during mechanical ventilation suggests:

Accepted Answer

Fluid responsiveness

Answer

Volume overload

Answer

Pulmonary hypertension

Answer

Aortic stenosis

Question 4

In a patient with acute right ventricular infarction, the expected hemodynamic profile includes:

Accepted Answer

Low PCWP, low CO, high CVP

Answer

High PCWP, high CO, low CVP

Answer

High PCWP, low CO, high SVR

Answer

Low PCWP, high CO, low SVR

Question 5

Which hemodynamic value is used to calculate pulmonary vascular resistance (PVR)?

Accepted Answer

(mPAP – PCWP) / CO

Answer

(mPAP – CVP) / CO

Answer

(SBP – DBP) / HR

Answer

(MAP – PCWP) / CO

Question 6

Continuous SvO₂ monitoring via fiberoptic pulmonary artery catheter is particularly useful for detecting:

Accepted Answer

Imbalances between oxygen delivery and consumption

Answer

Atrial fibrillation onset

Answer

Pericardial effusion

Answer

Valvular regurgitation severity

Question 7

Frank-Starling law states that increased ventricular preload leads to:

Accepted Answer

Increased stroke volume up to an optimal point

Answer

Decreased stroke volume due to overstretching

Answer

Unchanged stroke volume regardless of filling

Answer

Decreased heart rate to compensate